19 A house mark for non-metallic polymer, fiberglass and fiberglass composite in ground and above ground swimming pools, lap pools, swim-in-place pools, swimming pool shells, parts and replacement parts therefor for the above; fitted vinyl liners specially adapted for non-metal swimming pools, and replacement parts for the same; A house mark for fitted protective swimming pool covers and fitted motorized protective swimming pool covers; A house mark for non-metal building and construction materials in the nature of fiberglass, carbon and resin for use in swimming pool repair and maintenance